class Something(object):

    @staticmethod
    def foo(x):
        return x + 5

    @staticmethod
    def bar(x, y):
        return y + 5 * x
	
# something.py

def foo(x):
    return x + 5

def bar(x, y):
    return y + 5 * x
	
import something
print something.foo(10)
print something.bar(12, 14)
	
class Something(object):
    def foo(self, x):
        return x + 5

    def bar(self, x, y):
        return y + 5 * self.foo(x)

something = Something()